Friday, March 14, 2014

Frost-Covered Dunes in Noachis Terra East of Proctor Crater

This image of a sand dune field in a Southern highlands crater was acquired when the Sun was just 5 degrees above the horizon. As a result, the image is mostly shadows, with sharply-delineated dune crests sticking up into the sunlight.

The especially bright patches—bluish in enhanced color—are due to seasonal frost that is accumulating as this hemisphere approaches winter.

Photo credit: NASA/JPL/University of Arizona

Note: For more information, see PIA18118: Dramatic Dune Destination. This impact crater is located just east of Proctor Crater.

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